M51660L Datasheet, PDF (1/4 Pages) Mitsubishi Electric Semiconductor – SERVO MOTOR CONTROL FOR RADIO CONTROL

MITSUBISHI <CONTROL / DRIVER IC>
M51660L
SERVO MOTOR CONTROL FOR RADIO CONTROL
DESCRIPTION
The M51660L is a semiconductor integrated circuit for use in servo
motor control in radio control applications.
Housed in a 14-pin molded plastic zig-zag inline package (ZIP), the
M51660L contributes to the miniaturization of the set.
The built-in voltage regulating circuit, and the differential
comparator used in the comparator circuit provide the M51660L
with extremely stable power supply voltage fluctuation
characteristics and temperature change characteristics.
FEATURES
q Small circuit current • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 3.5mA typ.
(When output is off)
q Excellent power supply and temperature stability
q Simple setting of dead band
q Includes protection circuit for continuous “H” level input
APPLICATION
Digital proportional system for radio control, and servo motor
control circuit, etc.
RECOMMENDED OPERATING CONDITIONS
Supply voltage range 3.5 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • – 7V
Rated supply voltage • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 4.8V
PIN CONFIGURATION (TOP VIEW)
Servo position voltage 1
Timing capacitor 2
Timing resistor 3
External PNP transistor drive (1) 4
Input 5
Output (1) 6
7
GND
8
Error pulse output 9
Output (2) 10
Stretcher input 11
External PNP transistor drive (2) 12
Regulated voltage output 13
Supply 14
Outline 14P5A
BLOCK DIAGRAM
Input 5
Control
logic
circuit
Supply
(4.8V)
14
VCC
Flip-flop
GND
7
8
Output
drive
circuit
4 External PNP transistor drive (1)
6 Output (1)
10 _{Output (2)}
12 External PNP transistor drive (2)
One-shot
multivibrator
Pulse
stretcher
Voltage
regulating
circuit
13 Regulated voltage output
1
2
3
Servo position Timing
Timing
voltage input capacitance resistor
9
Error pulse
output
11
Stretcher
input